<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .parent{
            width: 200px;
            background-color: red;
            overflow: hidden;
        }
        .child{
          width: 100px;
          height: 100px;
          background-color: yellow;
          float: left;
        }

    </style>
</head>
<body>
    <div class="parent">
      <div class="child">

      </div>
    </div>
</body>
</html>